An eSIM is a digital version of a physical SIM card that offers the same functionality but without the need for physical insertion. With eSIM, subscribers can seamlessly join the Ultraactivation network by installing the eSIM directly onto their phones.
To use an eSIM card, please ensure that the subscriber's phone is both eSIM-compatible and unlocked. It's important to check the phone's eSIM compatibility in the next step to ensure an hassle-free experience.